Details from http://en.wikipedia.org/wiki/Gungrave_%28anime%29#Characters
Voiced by: Tomokazu Seki (Japanese), Kirk Thornton (English)
A small-time criminal who was in a gang with his best friend, Harry McDowell, along with three other close friends. After their friends were killed, Brandon and Harry joined the crime syndicate Millennion, led by Big Daddy. Brandon was trained by Millennion's Bear Walken to be a sweeper (assassin), eventually forming his own elite sweeper unit within Millennion called "True Graves".
As Harry rose to power, Brandon remained loyal to the syndicate. Brandon confronted Harry for betraying the organization, but found himself unable to kill his friend. Instead, Harry kills Brandon during his moment of hesitation. Brandon was resurrected by Dr. Tokioka as "Beyond the Grave". His purpose is to destroy the syndicate that he once worked for and the friend who betrayed him. At the end of the anime, Brandon chose to protect Harry instead of killing him out of the old time friendship. It's implied that he probably rests in peace the second time he dies when Mika finally arrives. Brandon acts like a parental figure to Mika and told her to move on when he told her that he no longer belongs to the living near the end of the series.
Character is error.